[Translate to Englisch:] Außenansicht Messehalle Straubing

[Translate to Englisch:] BSH Dachkonstruktion Messehalle Straubing

[Translate to Englisch:] Montage BSH Konstruktion Messehalle Straubing

[Translate to Englisch:] Brettschichtholz Dachkonstruktion Messehalle Straubing

Straubing, Germany

Exhibition hall
Straubing

The Zollinger construction method goes back to the architect and town planner Friedrich Zollinger (1880 - 1945). He had the system patented in 1923.

As early as 1928, WIEHAG Zimmerei utilised this construction method to build its own sawmill. 70 years later, WIEHAG builds another Zollinger hall measuring 36m x 35m for the trade fair in Straubing. This time calculated and designed by engineers. The construction was assembled on site on the ground on a mobile support frame and then lifted as a whole onto the supports using 4 mobile cranes.

Description of the project

A masterly achievement

In 1998, WIEHAG was the contractor for this customised roof construction with a span of 36m and a width of 35m. The circular arched roof with a pitch height of 4m was spanned with a 4m difference in support height between the solid buildings. The verge ends form glued laminated timber beams in the arch.

The node connections for such a large span of a Zollinger construction method had to be adapted or newly developed.

Glulam roof construction exhibition hall Straubing

The realisation

The Zollinger
construction method
modern mindset

The principle of the Zollinger construction method was implemented using glulam cross-sections 14 x 49 cm in the centre of the bars, cut to an arch shape on the top side, in diamond sizes of 1.60 m x 3.80 m. Horizontally slotted steel plates and rod dowels formed the node connections. The precise shape geometry was created using a 3D CAD planning programme. The computer data was transferred to a CNC-controlled joinery system. This ensured the high accuracy of fit required for assembly.

The load-bearing shell was assembled in sections on a mobile support frame on the ground. Twelve metre long, finger-jointed 3-S panels, 30 mm thick, were nailed on as planking to provide longitudinal bracing and dimensional stability. Four mobile cranes were used to swivel in the approx. 98 tonne construction of the 1,080 m² floor plan area, which was attached at 8 points. The lifting process was completed after 5 hours when the structure could be set down after the steel connections had been bolted to the solid construction in the area of the transoms.